29becbe079
The shim always injected --session-id with a fresh UUID, which broke `claude --resume <id>` and `claude --continue` by conflicting with the user's session flag. Now scans args and skips injection when the user already specifies a session/resume flag. Also passes through subcommands (mcp, config, api-key) without injecting hooks or session flags since they don't support them.
60 lines
2.4 KiB
Bash
Executable file
60 lines
2.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# cmux claude wrapper - injects hooks and session tracking
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#
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# When running inside a cmux terminal (CMUX_SURFACE_ID is set), this wrapper
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# intercepts `claude` invocations to inject --session-id and --settings flags
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# so that Claude Code hooks fire back into cmux for notifications/status.
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# Outside cmux, it passes through to the real claude binary unchanged.
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# Find the real claude binary, skipping our own directory.
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find_real_claude() {
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local self_dir
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self_dir="$(cd "$(dirname "$0")" && pwd)"
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local IFS=:
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for d in $PATH; do
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[[ "$d" == "$self_dir" ]] && continue
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[[ -x "$d/claude" ]] && printf '%s' "$d/claude" && return 0
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done
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return 1
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}
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# Pass through if not in a cmux terminal or hooks are disabled.
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if [[ -z "$CMUX_SURFACE_ID" || "$CMUX_CLAUDE_HOOKS_DISABLED" == "1" ]]; then
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REAL_CLAUDE="$(find_real_claude)" || { echo "Error: claude not found in PATH" >&2; exit 127; }
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exec "$REAL_CLAUDE" "$@"
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fi
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# Find real claude.
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REAL_CLAUDE="$(find_real_claude)" || { echo "Error: claude not found in PATH" >&2; exit 127; }
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# Pass through subcommands that don't support session/hook flags.
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case "${1:-}" in
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mcp|config|api-key) exec "$REAL_CLAUDE" "$@" ;;
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esac
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# Unset CLAUDECODE to avoid "nested session" detection — cmux terminals are
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# independent sessions even when the parent shell was launched from Claude Code.
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unset CLAUDECODE
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# Check if the user already specified a session/resume flag.
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# If so, don't inject our own --session-id (it would conflict).
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SKIP_SESSION_ID=false
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for arg in "$@"; do
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case "$arg" in
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--resume|--resume=*|--session-id|--session-id=*|--continue|-c)
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SKIP_SESSION_ID=true
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break
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;;
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esac
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done
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# Build hooks settings JSON.
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# Claude Code merges --settings additively with the user's own settings.json.
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HOOKS_JSON='{"hooks":{"SessionStart":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook session-start","timeout":10}]}],"Stop":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook stop","timeout":10}]}],"Notification":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook notification","timeout":10}]}]}}'
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if [[ "$SKIP_SESSION_ID" == true ]]; then
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exec "$REAL_CLAUDE" --settings "$HOOKS_JSON" "$@"
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else
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SESSION_ID="$(uuidgen | tr '[:upper:]' '[:lower:]')"
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exec "$REAL_CLAUDE" --session-id "$SESSION_ID" --settings "$HOOKS_JSON" "$@"
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fi
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